{"answers":{"affected":"2 open source packages ship an affected version, including org.jenkins-ci.plugins:tfs. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-21638 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-21638 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-21638 is a high-severity vulnerability in Jenkins Team Foundation Server Plugin, published on 30 Mar 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-21638 and fix it if it is affected.\n\nWhat it is: CVE-2021-21638 is a high-severity vulnerability in Jenkins Team Foundation Server Plugin, published on 30 Mar 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-21638 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.jenkins-ci.plugins:tfs (Maven): affected all versions up to 5.157.1; no fix listed\n- org.jenkins-ci.plugins:tfs (Maven): affected all versions up to 5.157.1; no fix listed\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2021-21638/ (Markdown: https://insights.sbomify.com/CVE-2021-21638/index.md)","id":"CVE-2021-21638","markdown":"https://insights.sbomify.com/CVE-2021-21638/index.md","name":"CVE-2021-21638","record":{"aliases":["GHSA-263q-5pj7-j6hj"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Jenkins TFS Plugin","requires_auth":"none","summary":"Attackers can exploit CSRF to connect to malicious URLs using stolen credentials, capturing stored Jenkins credentials.","user_interaction":"required","vuln_class":"csrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jenkins","cpe":[{"product":"team_foundation_server","vendor":"jenkins"}],"cvss":{"score":8.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-352","name":"Cross-Site Request Forgery"}],"description":"A cross-site request forgery (CSRF) vulnerability in Jenkins Team Foundation Server Plugin 5.157.1 and earlier allows attackers to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"CSRF vulnerability in Jenkins Team Foundation Server Plugin allow capturing credentials","id":"CVE-2021-21638","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"csrf","year":"2021"},"n_packages":2,"n_references":2,"next":{"headline":"Lack of type validation in agent related REST API in Jenkins","id":"CVE-2021-21639"},"packages":[{"ecosystem":"Maven","fixed":[],"introduced":["0"],"last_affected":["5.157.1"],"package":"org.jenkins-ci.plugins:tfs","purl":null,"source":"GHSA-263q-5pj7-j6hj"},{"ecosystem":"Maven","fixed":[],"introduced":["0"],"last_affected":["5.157.1"],"package":"org.jenkins-ci.plugins:tfs","purl":"pkg:maven/org.jenkins-ci.plugins/tfs","source":"GHSA-263q-5pj7-j6hj"}],"prev":{"headline":"Missing permission check in Jenkins Team Foundation Server Plugin allow capturing credentials","id":"CVE-2021-21637"},"products":["Jenkins Team Foundation Server Plugin"],"published":"2021-03-30","related":[{"cvss_score":6.5,"headline":"Missing permission check in Jenkins Team Foundation Server Plugin allow capturing credentials","id":"CVE-2021-21637","kev_date_added":null,"published":"2021-03-30"},{"cvss_score":4.3,"headline":"Missing permission check in Jenkins Team Foundation Server Plugin allows enumerating credentials IDs","id":"CVE-2021-21636","kev_date_added":null,"published":"2021-03-30"},{"cvss_score":3.3,"headline":"Credentials stored in plain text by Jenkins tfs Plugin","id":"CVE-2020-2249","kev_date_added":null,"published":"2020-09-01"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["Jenkins project"]},"summary":"Attackers can exploit CSRF to connect to malicious URLs using stolen credentials, capturing stored Jenkins credentials.","url":"https://insights.sbomify.com/CVE-2021-21638/"}